Yes, there isn't any place in the JMX with reads/secon=
d or writes/second, just CompletedTasks. I send this info to Graphite (http://graphite.wikidot.com/) and =
use the "derivative" function to get reads/minute. Munin also doe=
s the trick (https://github=
.com/tcurdt/jmx2munin). But you can't do that with cassandra itself=
, you need somewhere to make the calculations (cacti is also a good match).=

We running a pretty consistent load on our c=
luster and added a new node to a 6 node cluster Friday(QA worked great, but=
production not so much). =A0One mistake that was made was starting up the =
new node, then disabling the firewall :( which allowed nodes to discover it=
BEFORE the node bootstrapped itself. =A0We shutdown the node and booted hi=
m up and he bootstrapped himself streaming all the data in.

After that though, all the ndoes have really really high load numbers now. =
=A0We are trying to figure out what is going on still.

Is there any way to get the number of reads/second and writes/second throug=
h JMX or something? =A0The only way I can see of on doing this is manually =
calculating it by timing the read count and dividing by my manual stop watc=
hes start/stop times(timerange).

Also, while my load is load average: 20.31, 19.10, 19.72 , what does a norm=
al iostat look like? =A0My iostat await time is 13.66 ms which I think is k=
ind of bad, but not that bad to cause a load of 20.31?